Toronto Maple Leafs center Calle Jarnkrok is considered month-to-month after undergoing groin and sports hernia surgery, the team announced Monday.

Jarnkrok, 33, has not played in a game this season.

Jarnkrok tallied 21 points (10 goals, 11 assists) in 52 games last season for the Leafs.

The former second-round pick has 301 career points (136 goals, 165 assists) in 699 career games played for four teams, most notably the Nashville Predators (2013-21).

Jarnkrok is in the third season of a four-year, $8.4 million contract in Toronto.